Physiological and pathological researches / being a reprint of the principal scientific writings of the late T. R. Lewis ... Arranged and edited by Sir William Aitken ... G. E. Dobson ... and A. E. Brown.
- Timothy Richards Lewis
- Date:
- 1888
Licence: Public Domain Mark
Credit: Physiological and pathological researches / being a reprint of the principal scientific writings of the late T. R. Lewis ... Arranged and edited by Sir William Aitken ... G. E. Dobson ... and A. E. Brown. Source: Wellcome Collection.
Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.
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![and the large one broke u]> into air-globules and granular matter (3, 4). Pressure was again applied, and the small one also broke up, as shown at 5. Another case may be quoted as illustrative of this kind of cyst. The evacuation was passed six hours after attack, and two hours before death ; it contained numerous cyst-like bodies, some entire, others more or less broken up, and in many cases seemed to contain partitions (Plate III, Fig. vii). These bodies withstood the action of rectified ether until the fibro-albuminous matter surrounding them had been removed by the application of potash. 2. In the same evacuation other globular cyst-like bodies were found of a yellowish- green tint, having a more defined outline, and more evenly diffused contents (Plate III, Fig. viii, 1, 4). These were unaffected by the ether, and remained unaffected by liquor potassas for three days. These cysts occurred in nearly all the evacuations examined, but their precise nature was for a considerable time unexplained. They were some- times round, but generally oval, and in some cases formed about a fourth of the entire sediment. This was particulai'ly observed in some dejecta with which I was favoured from the Medical College Hospital, obtained from a native who was admitted with all the symptoms of cholera, but eventually recovered. They were, as in other cases, of a greenish-yellow tinge, with colourless hyaline capsules, for the most part oval (x) — sometimes round, and varying considerably in size, as seen in the figure. One of these cysts was selected for special observation, the one represented at Fig. ix, 1 ; ether being added, the contents cleared up a little, but nothing further; this was followed by strong liquor potassae, which caused it to become dotted and streaky, the yellow tinge, however, remaining (2); gradually changing to the appearance depicted at 3, the centre becoming more transparent than the circumference, which still further extended, as at 4. The transparency of the central portion diminished in the course of a few minutes (5), in which condition the object was left under the microscope until the next morning, when it was found to have retained its form, but had acquired a dark colour. Another cyst was selected with a dark-yellow granular centre, and hyaline capsule (Fig. x, 1). Ether was added j scarcely any change; merely clearing up the centre a little. It was then rolled over, and the granular contents spread throughout the entire cell (2). Firm pressure was applied, the eye being kept steadil}^ at the microscope, when suddenly numerous minute molecules escaped (3), and the capsule became partly emptied of its contents (4). Liquor potassae was added to a portion of the evacuation, and allowed to stand all night. The cysts on examination next morning appeared unaffected. To another test tube sulphuric acid was added. The cysts, after remaining several hours in the acid, were not much altered, but presented a globular outline with a hyaline capsule surrounding a greenish-yellow molecular mass (Plate IV, Fig. xi, 1, 2). On rolling them over they became oval, but soon regained the circular form. On the addition of a strong solution of iodine, the contents became dark-brown, and on sub- sequently adding absolute alcohol, fat-like globules made their appearance, which, by manipulation could be made to move within the cell ; the capsule being unaffected](https://iiif.wellcomecollection.org/image/b21296996_0044.jp2/full/800%2C/0/default.jpg)
